Foreign keys can handle deletes and updates.
A. True
B. False
Answer: Option A
Solution (By Examveda Team)
This question asks if foreign keys can handle deleting and updating data in a database.Let's break it down:
Foreign Keys are like connections between different tables in a database. Imagine you have a table for customers and another for orders. A foreign key in the orders table might link each order to the specific customer who placed it.
How Foreign Keys Handle Deletes and Updates:
* Deleting a Customer: If you try to delete a customer who has existing orders, the database will likely prevent the deletion to maintain data integrity. This is because deleting the customer would leave orders without a valid reference.
* Updating a Customer: If you change information about a customer, the changes might be reflected in the orders table, depending on how the foreign key constraint is set up.
Therefore, the answer is:
Option A: True
Related Questions on MySQL Miscellaneous
How is communication established with MySQL?
A. SQL
B. Network calls
C. A programming language like C++
D. APIs
Which type of database management system is MySQL?
A. Object-oriented
B. Hierarchical
C. Relational
D. Network
Join The Discussion